APA (7th ed.) Citation

Manwell, R. D. (1968). Introduction to protozoology (2. rev. ed.). Dover.

Chicago Style (17th ed.) Citation

Manwell, Reginald D. Introduction to Protozoology. 2. rev. ed. New York: Dover, 1968.

MLA (9th ed.) Citation

Manwell, Reginald D. Introduction to Protozoology. 2. rev. ed. Dover, 1968.